I was hoping to get some help ordering the correct shocks for applying MarkMCs 2.5" lift to the factory springs both front and rear. Vehicle is a 2002 GMC Envoy SLT 4x4 with MarkMCs 1.5" spacers both front and rear. I am looking to mount 265/70/r17 all terrains.

I am having a hard time figuring out what Bilstein 5125 shocks will be best for the rear with appropriate travel and valving for this setup?

I am also having a hard time figuring out what Bilstein shocks to get up front? I read a lot of people choosing Bilstein HDs up front but no other information.

Yes I have looked at other builds, I cannot find exact part numbers for rear bilsteins, but I was able to sort out some shocks.

For the rear, I am considering the Skyjacker n8030 shocks, because the rear requires a longer shock after lift (cannot sort out what bilsteins to get).For the front, I am going to leave the shock stock, or consider bilsteins B6 4600 Series Front (24-103336). These don't have to be any longer than stock since the lift block goes on top of the assembly, so the shock remains the same length.